8891001

素因数分解:

$3^2\times 7^2\times {\mathrm{20161}}^1$

素因数の和:20181

約数の個数: 18

約数和(自身を含む): 14940042

約数和(自身を除く): 6049041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 20161, 60483, 141127, 181449, 423381, 987889, 1270143, 2963667, 8891001]

約数ペア:

[(1, 8891001), (3, 2963667), (7, 1270143), (9, 987889), (21, 423381), (49, 181449), (63, 141127), (147, 60483), (441, 20161)]